QSS vs Zed
Right, so now that QSS doesn't stop zeds ult what am I supposed to do when he ults me?
Right, so now that QSS doesn't stop zeds ult what am I supposed to do when he ults me?
die
Why didn't you ban him? Because that is the only thing that will stop him.
Maybe outplay him?....
Why does everyone think that Zed ult = instant death? You can even kill him in the three seconds it takes for the mark to detonate, depending on gold advantage / items / skill.

+ 
Best hard counter this is: Stick with your team.
Relax a bit and wait for them to nerf stuff.